So, are you saying a Bishop can not use Economia over these specific canons?
I think we should be careful in assuming that any uncanonical act can be justified by economia
. Could a bishop use economia
to get married when the canons say he can't?
the issue can only be resolved by Ecumenical Council and not by personal feelings of any bishop.
The non-Chalcedonians are so called because they don't accept the Council of Chalcedon (and the subsequent Councils). Some kind of recognition of all 7 Councils (though not necessarily all the canons thereof - Rome did not accept all canons of Chalcedon and remained in communion with the east) might be necessary for reunion to take place, but I don't believe another Ecumenical Council must be held to resolve the issue.
In the Middle East, there is a great deal of mixing, even in parishes, of EO and OO.
And Catholics too, unfortunately. In the Levant it is quite common for priests of both the EO and OO Patriarchates of Antioch to commune Catholics without any preconditions. This is also true of some of the Syrian clergy serving in Egypt under the Patriarchate of Alexandria.